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Alexey Zholtikov
2025-05-30 17:43:32 +03:00
parent 68ee6431fc
commit ab9505ff8a
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README.md
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@ -1,4 +1,4 @@
# ESP32 ESP-IDF and ESP8266 RTOS SDK component for liquid crystal display module 1602A via I2C connection (PCF8574)
# ESP32 ESP-IDF and ESP8266 RTOS SDK component for liquid crystal display module 1602(4)A via I2C connection (PCF8574)
## Tested on
@ -7,18 +7,18 @@
## Features
1. Support of 16 LCD 1602A on one bus.
1. Support of 16 LCD 160X on one bus.
## Connection
| 1602A | PCF8574 |
| ----- | ------- |
| RS | P0 |
| E | P2 |
| D4 | P4 |
| D5 | P5 |
| D6 | P6 |
| D7 | P7 |
| 1602(4)A | PCF8574 |
| -------- | ------- |
| RS | P0 |
| E | P2 |
| D4 | P4 |
| D5 | P5 |
| D6 | P6 |
| D7 | P7 |
## Dependencies
@ -31,7 +31,7 @@ In an existing project, run the following command to install the components:
```text
cd ../your_project/components
git clone http://git.zh.com.ru/alexey.zholtikov/zh_1602a_i2c
git clone http://git.zh.com.ru/alexey.zholtikov/zh_160x_i2c
git clone http://git.zh.com.ru/alexey.zholtikov/zh_pcf8574
git clone http://git.zh.com.ru/alexey.zholtikov/zh_vector
```
@ -39,7 +39,7 @@ git clone http://git.zh.com.ru/alexey.zholtikov/zh_vector
In the application, add the component:
```c
#include "zh_1602a_i2c.h"
#include "zh_160x_i2c.h"
```
## Examples
@ -47,7 +47,7 @@ In the application, add the component:
One LCD on bus:
```c
#include "zh_1602a_i2c.h"
#include "zh_160x_i2c.h"
#define I2C_PORT (I2C_NUM_MAX - 1)
@ -55,13 +55,13 @@ One LCD on bus:
i2c_master_bus_handle_t i2c_bus_handle = NULL;
#endif
zh_pcf8574_handle_t lcd_1602a_handle = {0};
zh_pcf8574_handle_t lcd_160x_handle = {0};
void app_main(void)
{
esp_log_level_set("zh_1602a_i2c", ESP_LOG_NONE); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig.
esp_log_level_set("zh_pcf8574", ESP_LOG_NONE); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig.
esp_log_level_set("zh_vector", ESP_LOG_NONE); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig.
esp_log_level_set("zh_160x_i2c", ESP_LOG_NONE); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig.
esp_log_level_set("zh_pcf8574", ESP_LOG_NONE); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig.
esp_log_level_set("zh_vector", ESP_LOG_NONE); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig.
#ifdef CONFIG_IDF_TARGET_ESP8266
i2c_config_t i2c_config = {
.mode = I2C_MODE_MASTER,
@ -90,27 +90,31 @@ void app_main(void)
pcf8574_init_config.i2c_handle = i2c_bus_handle;
#endif
pcf8574_init_config.i2c_address = 0x27;
zh_pcf8574_init(&pcf8574_init_config, &lcd_1602a_handle);
zh_1602a_init(&lcd_1602a_handle);
zh_pcf8574_init(&pcf8574_init_config, &lcd_160x_handle);
zh_160x_init(&lcd_160x_handle, ZH_LCD_16X2); // For LCD 16X2.
// zh_160x_init(&lcd_160x_handle, ZH_LCD_16X4); // For LCD 16X4.
for (;;)
{
zh_1602a_set_cursor(&lcd_1602a_handle, 0, 0);
zh_1602a_print_char(&lcd_1602a_handle, "LCD 1602A");
zh_1602a_set_cursor(&lcd_1602a_handle, 1, 0);
zh_1602a_print_char(&lcd_1602a_handle, "Hello World!");
zh_160x_set_cursor(&lcd_160x_handle, 0, 0);
zh_160x_print_char(&lcd_160x_handle, "LCD 1602A");
zh_160x_set_cursor(&lcd_160x_handle, 1, 0);
zh_160x_print_char(&lcd_160x_handle, "Hello World!");
vTaskDelay(5000 / portTICK_PERIOD_MS);
zh_1602a_clear_row(&lcd_1602a_handle, 0);
zh_1602a_print_char(&lcd_1602a_handle, "Progress: ");
zh_160x_set_cursor(&lcd_160x_handle, 0, 0); // For LCD 16X2.
// zh_160x_set_cursor(&lcd_160x_handle, 2, 0); // For LCD 16X4.
zh_160x_print_char(&lcd_160x_handle, "Progress: ");
for (uint8_t i = 0; i <= 100; ++i)
{
zh_1602a_set_cursor(&lcd_1602a_handle, 0, 10);
zh_1602a_print_int(&lcd_1602a_handle, i);
zh_1602a_print_char(&lcd_1602a_handle, "%");
zh_1602a_print_progress_bar(&lcd_1602a_handle, 1, i);
zh_160x_set_cursor(&lcd_160x_handle, 0, 10); // For LCD 16X2.
// zh_160x_set_cursor(&lcd_160x_handle, 2, 10); // For LCD 16X4.
zh_160x_print_int(&lcd_160x_handle, i);
zh_160x_print_char(&lcd_160x_handle, "%");
zh_160x_print_progress_bar(&lcd_160x_handle, 1, i); // For LCD 16X2.
// zh_160x_print_progress_bar(&lcd_160x_handle, 3, i); // For LCD 16X4.
vTaskDelay(100 / portTICK_PERIOD_MS);
}
vTaskDelay(5000 / portTICK_PERIOD_MS);
zh_1602a_lcd_clear(&lcd_1602a_handle);
zh_160x_lcd_clear(&lcd_160x_handle);
vTaskDelay(5000 / portTICK_PERIOD_MS);
}
}